kalai (pm) 06 November 2014
Gundlapallis (Advocate) 07 November 2014
Caste is confirmed by birth. One cannot change ones caste but, one can denounce it by option. Veg or non-veg is habit. If your in laws are keen to give up non-veg for your sake... it is up to you to decide to associate with them. But certainly they cannot change their caste.